Principles and practice of operative dentistry . egum, upon the buccal or lingualside only, while the remainingportion is strong. Such cases offergreat difficulties to their extrac-tion with the forceps, which eitherslip off or carry away the remain-ing portion of the crown, whileit is often impossible to removethem with an elevator. The ap-plication of the turnkey (Fig. 667)to such teeth converts a difficultoperation into a simple one. This is accomplished by placing the fulcrumupon the gum upon the side of the tooth which has been broken away,and the claw upon the opposite side of the tooth
Principles and practice of operative dentistry . egum, upon the buccal or lingualside only, while the remainingportion is strong. Such cases offergreat difficulties to their extrac-tion with the forceps, which eitherslip off or carry away the remain-ing portion of the crown, whileit is often impossible to removethem with an elevator. The ap-plication of the turnkey (Fig. 667)to such teeth converts a difficultoperation into a simple one. This is accomplished by placing the fulcrumupon the gum upon the side of the tooth which has been broken away,and the claw upon the opposite side of the tooth at the margin of the permits a proper direction of the force applied, and admits of an easyand natural removal of the tooth. Forceps.—In these days of aseptic surgery all forceps should be madein such a manner that they may be taken apart, as this gives a betteropportunity for thorough sterilization. Fig. 668 shows an instrument ofthis character, the joint of which is very simple in construction, strong,and easily cleansed. Fig. Turnkey.
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectdentist, bookyear1920
